CN214788157U - Inner axial flow fan control device between SF6 electrical equipment - Google Patents

Abstract

The utility model discloses an inner axial flow fan control device between SF6 electrical equipment, including the control box, the upper and lower both ends fixed mounting has the baffle in the control box inside, two sets of the baffle separates the control box inside into detection cavity, control cavity and wiring cavity from top to bottom in proper order, the fixed mounting has oxygen concentration sensor and sulfur hexafluoride sensor in the detection cavity; the utility model discloses a realize that sulfur hexafluoride on-line control axial fan is automatic to open and stop, indoor SF6 gas content, the oxygen content reaches and stops after opening the condition, judge through the logic, and insert axial fan controlling means with the analog signal, open through starting the automatic start-stop of relay control fan, regulate and control the environment humiture, realize intelligent management, realize sulfur hexafluoride axial fan's automation and open and stop, test result safe and reliable has practiced thrift the human cost, the intelligent management of being convenient for, the problem that fan operating duration overlength generates heat has been solved, and sulfur hexafluoride leaks accumulational safety problem of patrolling and examining.

Description

Inner axial flow fan control device between SF6 electrical equipment

Technical Field

The utility model relates to the technical field, specifically be interior axial fan controlling means between SF6 electrical equipment.

Background

The GIS is an English abbreviation of a gas insulated fully-closed combined electrical apparatus, and is composed of a circuit breaker, a disconnecting switch, an earthing switch, a mutual inductor, a lightning arrester, a bus, a connecting piece, an outgoing line terminal and the like, all the equipment or components are enclosed in a metal grounded shell, and SF6 insulating gas with certain pressure is filled in the metal grounded shell, so the GIS is also called as an SF6 fully-closed combined electrical apparatus, general 220kV GIS equipment needs to adopt sulfur hexafluoride gas for arc extinction, and a GIS chamber axial flow fan needs to be arranged in order to prevent the sulfur hexafluoride from leaking and accumulating in a GIS chamber to cause potential safety hazards.

However, the conventional axial flow fan has the following disadvantages when in use:

1. the start and stop time of the axial flow fan is not easy to grasp;

2. manual inspection and inspection are required to be carried out every shift, and the axial flow fan is started and stopped;

3. when the tasks are more, the axial flow fan is stopped in a pure way, the motor is easy to generate heat when the fan runs for a long time, the negative pressure in a GIS room is kept for a long time, dust accumulation on dust-proof leaves is fast, and the cleaning period is greatly shortened;

4. the fan is not started timely, the content of sulfur hexafluoride in a GIS room exceeds the standard, and potential safety hazards exist during inspection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an interior axial fan controlling means between SF6 electrical equipment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: interior axial fan controlling means between SF6 electrical equipment includes:

the device comprises a control box, wherein partition plates are fixedly arranged at the upper end and the lower end of the interior of the control box, the interior of the control box is sequentially divided into a detection chamber, a control chamber and a wiring chamber by the two groups of partition plates from top to bottom, an oxygen concentration sensor and a sulfur hexafluoride sensor are fixedly arranged in the detection chamber, and a time relay, a starting relay and a contactor are fixedly arranged in the wiring chamber;

a control module;

the control module is electrically connected with the oxygen concentration sensor, the sulfur hexafluoride sensor, the time relay and the starting relay respectively.

Preferably, a box door is hinged to one side of the outer wall of the control box.

Preferably, the mounting plates are fixedly mounted on two sides of the outer wall of the control box, and bolt holes are formed in the surfaces of the mounting plates.

Preferably, the top end surface of the control box is provided with a vent, and the inner wall of the vent is embedded with a dustproof filter screen.

Preferably, the surface of the bottom end of the control box is provided with a wiring hole.

Preferably, the oxygen concentration sensor is used for monitoring the indoor oxygen concentration in real time and transmitting the detected oxygen concentration to the control module for processing and analysis.

Preferably, the sulfur hexafluoride sensor is used for monitoring indoor sulfur hexafluoride in real time and transmitting the detected sulfur hexafluoride to the control module for processing and analysis.

Preferably, the control module is used for processing and analyzing the received data information and then controlling the start and stop of the axial flow fan.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a realize that sulfur hexafluoride on-line control axial fan is automatic to open and stop, indoor SF6 gas content, the oxygen content reaches and stops after opening the condition, judge through the logic, and insert axial fan controlling means with the analog signal, open through starting the automatic start-stop of relay control fan, regulate and control the environment humiture, realize intelligent management, realize sulfur hexafluoride axial fan's automation and open and stop, test result safe and reliable has practiced thrift the human cost, the intelligent management of being convenient for, the problem that fan operating duration overlength generates heat has been solved, and sulfur hexafluoride leaks accumulational safety problem of patrolling and examining.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic diagram of a component frame structure of the present invention;

fig. 4 is a circuit diagram of the present invention.

In the figure: 10-a control box; 11-a separator; 12-a detection chamber; 13-a control chamber; 14-a wiring chamber; 15-a vent; 16-dustproof filter screen; 20-a box door; 30-mounting a plate; 40-an oxygen concentration sensor; 50-sulfur hexafluoride sensor; 60-time relay; 70-starting a relay; 80-a contactor; 90-control module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: interior axial fan controlling means between SF6 electrical equipment includes: a control box 10 and a control module 90.

In this embodiment, the control box 10 has a rectangular structure.

The automatic control box is characterized in that partition plates 11 are fixedly mounted at the upper end and the lower end inside the control box 10, the partition plates 11 divide the inside of the control box 10 into a detection chamber 12, a control chamber 13 and a wiring chamber 14 from top to bottom in sequence, an oxygen concentration sensor 40 and a sulfur hexafluoride sensor 50 are fixedly mounted inside the detection chamber 12, a time relay 60, a starting relay 70 and a contactor 80 are fixedly mounted inside the wiring chamber 14, and the time relay 60 and the starting relay 70 are electrically connected with the axial flow fan.

Furthermore, sulfur hexafluoride controls the axial flow fan to be automatically started and stopped on line, after the indoor SF6 gas content and oxygen content reach the starting and stopping conditions, the analog quantity signal is accessed to the axial flow fan control device through logic judgment, the fan is controlled to be automatically started and stopped through the starting relay 70, the environment temperature and humidity are regulated, and intelligent management is achieved.

In this embodiment, the oxygen concentration sensor 40 is, specifically, O2-A2.

Further, the oxygen concentration sensor 40 is used to monitor the oxygen concentration in the room in real time and transmit the detected oxygen concentration to the control module 90 for processing and analysis.

In this embodiment, the sulfur hexafluoride sensor 50 is specifically JXM-SF 6.

Further, the sulfur hexafluoride sensor 50 is configured to monitor indoor sulfur hexafluoride in real time, and transmit the detected sulfur hexafluoride to the control module 90 for processing and analysis.

In this embodiment, specifically, the control module 90 adopts an FPGA chip.

Further, the control module 90 is configured to process and analyze the received data information, and then control the start and stop of the axial flow fan.

The control module 90 is electrically connected to the oxygen concentration sensor 40, the sulfur hexafluoride sensor 50, the time relay 60, and the start relay 70, respectively.

Wherein, a box door 20 is hinged on one side of the outer wall of the control box 10.

Wherein, the mounting panel 30 is fixedly mounted on both sides of the outer wall of the control box 10, and bolt holes are formed in the surface of the mounting panel 30.

Further, the mounting and fixing of the device can be achieved by the mounting plate 30.

The top end surface of the control box 10 is provided with a vent 15, and a dustproof filter screen 16 is embedded in the inner wall of the vent 15.

Further, the ventilation opening 15 facilitates air to smoothly enter the detection chamber 12, and the dust-proof filter 16 also prevents dust from entering.

Wherein, the bottom surface of the control box 10 is provided with a wiring hole.

The working principle is as follows: when the sulfur hexafluoride starting loop is used, when the concentration of SF6 reaches 1000ppm, the relay KA1 is closed, KM1 is electrified for attraction, and the motor of the axial flow fan is electrified for operation; the time relay counts for 30 minutes, KA1 is separated, and the axial flow fan is cut off. (2) The loop is started by the oxygen content, when the oxygen content is lower than 18%, the relay KA2 is closed, the KM1 is electrified and attracted, and the motor of the axial flow fan is electrified and operated; the time relay counts for 30 minutes, and relay KA2 loses the electricity and separates, and axial fan cuts off the power supply. (3) When Beijing is 09:00 min, the relay KA3 is closed, the KM1 is electrified and attracted, and the motor of the axial flow fan runs in a power-on mode; the time relay counts for 30 minutes, KA3 is separated, and the axial flow fan is cut off.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. An interior axial fan controlling means between SF6 electrical equipment, its characterized in that includes:

   the device comprises a control box (10), wherein partition plates (11) are fixedly mounted at the upper end and the lower end inside the control box (10), the interior of the control box (10) is sequentially divided into a detection chamber (12), a control chamber (13) and a wiring chamber (14) by the two groups of partition plates (11) from top to bottom, an oxygen concentration sensor (40) and a sulfur hexafluoride sensor (50) are fixedly mounted inside the detection chamber (12), and a time relay (60), a starting relay (70) and a contactor (80) are fixedly mounted inside the wiring chamber (14);

   a control module (90);

   the control module (90) is electrically connected with the oxygen concentration sensor (40), the sulfur hexafluoride sensor (50), the time relay (60) and the starting relay (70) respectively.
2. 2. The control device of an axial flow fan in an SF6 electrical equipment room of claim 1, wherein: and a box door (20) is hinged to one side of the outer wall of the control box (10).
3. 3. The control device of an axial flow fan in an SF6 electrical equipment room of claim 1, wherein: the control box (10) outer wall both sides fixed mounting have mounting panel (30), the bolt hole has been seted up on mounting panel (30) surface.
4. 4. The control device of an axial flow fan in an SF6 electrical equipment room of claim 1, wherein: the top end surface of the control box (10) is provided with a ventilation opening (15), and a dustproof filter screen (16) is embedded in the inner wall of the ventilation opening (15).
5. 5. The control device of an axial flow fan in an SF6 electrical equipment room of claim 1, wherein: the bottom end surface of the control box (10) is provided with a wiring hole.
6. 6. The control device of an axial flow fan in an SF6 electrical equipment room of claim 1, wherein: the oxygen concentration sensor (40) is used for monitoring the indoor oxygen concentration in real time and transmitting the detected oxygen concentration to the control module (90) for processing and analysis.
7. 7. The control device of an axial flow fan in an SF6 electrical equipment room of claim 1, wherein: the sulfur hexafluoride sensor (50) is used for monitoring indoor sulfur hexafluoride in real time and transmitting the detected sulfur hexafluoride to the control module (90) for processing and analysis.
8. 8. The control device of an axial flow fan in an SF6 electrical equipment room of claim 1, wherein: and the control module (90) is used for processing and analyzing the received data information and then controlling the start and stop of the axial flow fan.

Images